I started learning Haskell again this year. And I finally got to work with it professionally. I'm also using PureScript in the same project, so it's really exciting.
This year I also discovered R. I had to do a Python to R translation, so I got fairly familiar with R.
I also discovered a few languages, but I haven't started learning them yet: red-lang and Pharo.
I've played with Pharo a bit and have started to learn Red's ancestor "Rebol". All of these technologies are pretty great. I think Red will find that niche where it is super empowering to use and still fast enough with the Red/system dialect, multicore...etc.
What attracts me most about red-lang is its cross-platform GUI story (I know that the iOS back-end is not implemented yet). You can do so much with so little code. It looks like a great platform for this. The syntax also helps.
